Improvement in looms for weaving blinds



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Loo'm for Weaving Blinds, &c.

NG. 133,332.. A Patented Nov.26,1B72-.

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.ATES

PATENT OFFICE.

BENJAMIN R. MURPHY, 0F PARKERSBURG, VVES'J.` VIRGINIA, ASSIGNOR OFONE-HALF HIS RIGHT TO CHARLES A. WADE, OF- SAME PLACE.

IMPROVEMENT IN LOOMS FOR WEAVING BLINDS, &c.

Specification forming part of Letters Patent No. l 33,332, datedNovember 26, 1872.

To all whom 'it may concern:

Be it known that I, BENJAMINR. MURPHY, of Parkersburg, in the county ofWood and State of West Virginia, have invented a new and useful Machinefor Weaving Blinds and other similar articles; and I do hereby declarethat the following is a full, clear, and exa-ct description of theconstruction and operation ofthe same, reference being had to theaccompanying drawing making a part of this specilisation, in whichiFigure l, Sheet l, is a side elevation; Fig. 2, Sheet 2, is a top view;and Fig. 3, Sheet 2, is atransverse section, as shown at line :v a'.

Like letters in the various figures of the drawing indicate like parts.

N atar@` of the Intention.

catches, arranged to automatically fasten and unfasten themselves, so asto alternately change the holders from one side ofthe beam to the other,thus crossing the threads of the warp over the top of each slip or slatand weaving a complete blind, screen, or web. The carriages are operatedby means of a shaft provided with a crank at one end and a pitman ateach end attached to pivoted arms connecting with the carriages.

Description.

A is the center beam provided with the longitudinal slot a in themiddle, and is rigidly attached to the top of the loom-frame A. B B arethe b'obbin-holders. C (l are the bobbincarriages, pivoted to the frameA opposite the center of beam A. The inner ends ofthe holders are madeconcave to iit the round surface of the center beam, and the outer endsare provided with double notches to receive the automatic catches b b,and with double shouleach holder there are two of the automatic catchesb b, one on each side ofthe center beam, attached so as to work up anddown loosely upon the beams ofthe carriages and the ends of the catchesare beveled, as shown in Figs. 1 and 3, .so that when the ends of thetwo rows meet over the beam, as shown in Fig. 1, those at rest will'slide under and loosen those fastened to the holders and automaticallyfasten themselves to the holders, carrying them over by the return ofthe carriages to the opposite sides of the center beam, drawing thethreads of the warp through the transverse slots, and crossing thethreads over the top of the slip or slat, and pressing it down to thecenter of the beam, ready to receive another Slat; and as the slats arethus woven together they pass down through the longitudinal slot andunder roller D, and are wound up upon the roller E, which is operated bymeans of the lever L, weight G, ratchet-wheel d, and catch e, and hookf, in combination with a ratchetwheel and catch, arranged upon the.opposite end of the roller. H is a shaft extending through the loom-frame, and has its bearings ou the bottom beam of the frame, as seen inFig. 1. K is a crank attached to one end of y the shaft, and L L arepitmen attached at each end of the shaft and connected by pivotjoints tothe arms g h t', and the upper ends of the armst' are pivoted to theends of the bol bin-carriages. Holders B carry each only one bobbiu, d',while holders B carry each two bobbins, which are .made with pivots ateach end to revolve in depressions on the inner surfaces of the holdersand springs b', by which they are held in place, and they are arrangedso that two threads, one from each adjacent holder, will runin the sametransverse slot of the center beam. -Warp-tensions C are attached to theholders, as seen in Figs. l and 3.

Operation.

To prepare for operation, place an equal number of the holders', withtheir bobbins properly lled on each side ofthe center beam, alternatelywith the catches, so as to have a vacant catch between each pair ofholders and a vacant catch and space opposite each holder,

holders B being at the ends, all as shown in Fig. 2. Draw one threadfrom each adjacent holder down through each transverse slot, and securethe ends ofthe threads under the cen ter beam,place in the longitudinalslot a a slat, slip, or other lling to be Woven; then move the crankforward till the ends of the catches meet and automatically readjustthemselves over the top of the center beam, when the crank is movedback, carrying the holder alternately over to opposite sides of thebeam, crossing the threads over the top of the slat, as beforedescribed.

Having thus fully described my invention, what I claim therein as new,and desire to secure by Letters Patent, is-

1. A machine for Weaving blinds, having bobbin-holders arranged tooscillate alternately from side to side upon a center beam made with alongitudinal slot to receive the slip or slat, or other filling, andprovided with transverse slots to receive the threads of the warp,substantially as set forth.

2. The combination ofthe bobbin-holders wi th the oscillating carriages,provided with automatic catches, or their equivalents, arranged toautomatically fasten and unfasten themselves, so as to alternatelychange the holders from one side of the beam to the other, substantiallyas and for the purpose set forth.

3. The bobbin-holders B, provided with springs b' and Warp-tensions c',and having their inner ends made to t the round center beam A, and theirouter ends with shoulders having notches to receivethe automatic catchesb of the oscillating carriages C, substantially as set forth. e

4. The combination and arrangement of levers L, -Weight G,ratchet-Wheels d, catches c, hook f, arms g h i, and oscillatingcarriages C, provided with automatic catches b, in connection withbobbin-holders B and rollers D E for Winding the blind or screen up,substan tially Vas shown and set forth.

As evidence that I claim the foregoingv as my invention I have hereuntoset my hand in the presence of two witnesses.

BENJAMIN It. MURPHY.

- Vitnesses:

WARREN MOREHEAD, W. I. BOREMAN.

